Structural, morphological, optical, and magnetic properties of Gd-doped and (Gd, Mn) co-doped ZnO nanoparticles

2017 ◽  
Vol 93 ◽  
pp. 111-115 ◽  
Author(s):  
B. Poornaprakash ◽  
U. Chalapathi ◽  
S. Babu ◽  
Si-Hyun Park
2015 ◽  
Vol 286 ◽  
pp. 757-765 ◽  
Author(s):  
S. Fabbiyola ◽  
L. John Kennedy ◽  
Udaya Aruldoss ◽  
M. Bououdina ◽  
A.A. Dakhel ◽  
...  

2017 ◽  
Vol 29 (5) ◽  
pp. 3850-3855 ◽  
Author(s):  
Jaskaran Singh Malhotra ◽  
Arun Kumar Singh ◽  
Robin Khosla ◽  
Satinder Kumar Sharma ◽  
Gyaneshwar Sharma ◽  
...  

2019 ◽  
Vol 48 (32) ◽  
pp. 12228-12238 ◽  
Author(s):  
R. K. Kalaiezhily ◽  
V. Asvini ◽  
G. Saravanan ◽  
K. Ravichandran

Here, 1 mol% Dy,Ce co-doped ZnO nanoparticles were synthesized via combustion method and studied their structural, optical and magnetic properties.


2017 ◽  
Vol 121 (1) ◽  
pp. 013904 ◽  
Author(s):  
T. J. Castro ◽  
P. A. M. Rodrigues ◽  
A. C. Oliveira ◽  
F. Nakagomi ◽  
J. Mantilla ◽  
...  

Author(s):  
Huilian Liu ◽  
Xin Cheng ◽  
Hongbo Liu ◽  
Jinghai Yang ◽  
Yang Liu ◽  
...  

2020 ◽  
Vol 16 (4) ◽  
pp. 655-666
Author(s):  
Mona Rekaby

Objective: The influence of Manganese (Mn2+) and Cobalt (Co2+) ions doping on the optical and magnetic properties of ZnO nanoparticles was studied. Methods: Nanoparticle samples of type ZnO, Zn0.97Mn0.03O, Zn0.96Mn0.03Co0.01O, Zn0.95Mn0.03 Co0.02O, Zn0.93Mn0.03Co0.04O, and Zn0.91Mn0.03Co0.06O were synthesized using the wet chemical coprecipitation method. Results: X-ray powder diffraction (XRD) patterns revealed that the prepared samples exhibited a single phase of hexagonal wurtzite structure without any existence of secondary phases. Transmission electron microscope (TEM) images clarified that Co doping at high concentrations has the ability to alter the morphologies of the samples from spherical shaped nanoparticles (NPS) to nanorods (NRs) shaped particles. The different vibrational modes of the prepared samples were analyzed through Fourier transform infrared (FTIR) measurements. The optical characteristics and structural defects of the samples were studied through Photoluminescence (PL) spectroscopy. PL results clarified that Mn2+ and Co2+ doping quenched the recombination of electron-hole pairs and enhanced the number of point defects relative to the undoped ZnO sample. Magnetic measurements were carried out at room temperature using a vibrating sample magnetometer (VSM). (Mn, Co) co-doped ZnO samples exhibited a ferromagnetic behavior coupled with paramagnetic and weak diamagnetic contributions. Conclusion: Mn2+ and Co2+ doping enhanced the room temperature Ferromagnetic (RTFM) behavior of ZnO. In addition, the signature for antiferromagnetic ordering between the Co ions was revealed. Moreover, a strong correlation between the magnetic and optical behavior of the (Mn, Co) co-doped ZnO was analyzed.


2006 ◽  
Vol 296 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Xue-Chao Liu ◽  
Er-Wei Shi ◽  
Zhi-Zhan Chen ◽  
Hua-Wei Zhang ◽  
Li-Xin Song ◽  
...  

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